Câu 1 là c
Câu 2 là a

three + nine - two = ten

one +  nine - two = eight

dịch

one+two+three+four+five+six+seven+ieght+nine+ten

1+2+3+4+5+6+7+8+9=55

one+two+three+four+five+six+seven+ieght+nine+ten=1+2+3+4+5+6+7+8+9+10=55

TEN + FIVE = FIFTEEN

FOUR + TWO = SIX

NINE + SIX = FIFTEEN

=fifteen

six

=fifeen

one + four + five + ten + nine + six + seven = thirty seven

Mình không hiểu gì cả

sử dụng phép tính nhanh:

=(one + nine)+(two + eight)+(three + seven)+(four + six)+ten+five

=ten+ten+ten+ten+ten+five

=fifty-five

có số số hạng là:

(10 -1) :1 +1= 10

tổng dãy số là:

(10+1) x 10 :2=45

đáp số :45

1- I(was/were ) ten  

2- he (was/were ) nine

3-they (was/were) six.

4.she (was/were) three

5-you (was/were) five   

6-they (was/were) six.

7-Tony (was/were) seven.

8-I (was/were)  fine

 9)John(was/were) at home.

10.my friend(was/were) Lan 

11)Boys(was/were) at home.

12.my friends(was/were)old

1- I ( like / liked ) cats yesterday  

2- he ( lives / lived ) here last week   

3-they (go / went ) home yesterday

 4. you ( have / had ) a cat last week  

5- she ( have / had /has) a fish yesterday

  6- we ( eat  / ate ) cakes last week

7- It  ( rain / rained /rains ) yesterday   

8-I ( don’t / didn’t )  run last week

9-My friends( don’t / didn’t) go last week 

 10-Peter(didn’t/ doesn’t) eat last week

11.what (do/did)you do ?I (watch / watched) TV.

12. (Did/ do/Were ) you play chess? yes I  (did/do/was)

1- I(was/were ) ten

2- he (was/were ) nine

3-they (was/were ) six.

4.she (was/were) three 5-you (was/were) five

6-they (was/were ) six.

7-Tony (was/were) seven.

8-I (was/were) fine 9)John(was/were) at home.

10.my friend(was/were) Lan 11)Boys(was/were) at home.

12.my friends(was/were)old

Write the time

1. A quarter to eight :7h45'

2.From half past six to eight o’clock:from 6h30 to 8h

3.From four o’clock to quarter past five :from 4 to 5h15

4.At twelve o’clock :12h

5.At ten past eight:8h10

6.At ten to eight:7h50

7.From quarter past six to s:even o’clock:from 6h15 to 7

8.At five past two:2h5

9.From seven to nine o’clock:from 7 to 9

10.From ten past four to five o’clock:from 4h10 to 5h

11.At five o’clock:5h

12.At half past seven:7h30

13.From five o’clock to half past six :from 5h to 6h30

1. third

2. ninth

3. twentieth

4. sixth

5. twelfth

6. first

7. thirty-first

8. seventeenth

9. second

10. twenty-third

11. fifteenth

12. eighth

13. fifth

14. eleventh

15. twenty-fourth

16. tenth

17. seventh

18. twenty-eighth

19. fifteenth

20. thirteenth

1. third

2. ninth

3. twentieth

4. sixth

5. twelfth

6. first

7. thirty-first

8. seventeenth

9. second

10. twenty-third

11. fifteenth

12. eighth

13. fifth

14. eleventh

15. twenty-fourth

16. tenth

17. seventh

18. twenty-eighth

19. fifteenth

20. thirteenth

nếu đúng thì k mình nha

21

= 19